The little plastic bags of joy that some dog walkers choose to leave on fence posts or hanging in trees for everyone to enjoy are just horrible. What can spoil a walk for me is people who talk constantly whilst walking, normally about themselves whilst ignoring the beauty around them. A couple of years ago @Lullabelle and I were strolling along Stannage Edge in the Peak District, and we were slowly caught up by a couple of women. One of them never paused for breath - he said, then she said, then I did, and she was like..... . In the end we had to stop and let them past, the talker never looked up from her feet, and her companion carried the pained and exhausted expression of someone whose ears were being worn out. For me, the pleasure of a hill walk is not just the scenery, it's the solitude, and the removal of human noise pollution with the replacement by sounds of birdsong, the breeze and running water. Or am I just being an old git?